1020124020 has 24 divisors (see below), whose sum is σ = 2856347424. Its totient is φ = 272033056.

The previous prime is 1020124013. The next prime is 1020124067. The reversal of 1020124020 is 204210201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020123987 and 1020124005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8500974 + ... + 8501093.

It is an arithmetic number, because the mean of its divisors is an integer number (119014476).

Almost surely, 2^1020124020 is an apocalyptic number.

1020124020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020124020 is an abundant number, since it is smaller than the sum of its proper divisors (1836223404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020124020 is a wasteful number, since it uses less digits than its factorization.

1020124020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17002079 (or 17002077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1020124020 is about 31939.3803947415. The cubic root of 1020124020 is about 1006.6635057330.

Adding to 1020124020 its reverse (204210201), we get a palindrome (1224334221).

The spelling of 1020124020 in words is "one billion, twenty million, one hundred twenty-four thousand, twenty".